6 Questions
Light Blue Top (Plasma)
3.2% sodium citrate. These tubes are used for coagulation tests and need to be filled to ensure the proper ratio of blood anticoagulant.
Yellow Top (Plasma and Cells)
Contains ACD solution A or B. Used for Genetics testing.
Red Top (Serum)
Plain and gel. Used for chemistry and reference tests.
Lavender or Pink Top (Plasma)
Contains EDTA. Used primarily for hematology and blood bank testing.
Green Top (Plasma)
With and without gel, contains lithium heparin. These tubes are used primarily for chemistry tests.
Gray Top (Plasma)
Contains sodium fluoride/potassium oxalate. Used by chemistry for glucose testing.
Test your knowledge of phlebotomy tube colors with this quiz. Learn to identify the correct tubes for different blood components and tests.
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